Finding the Fourth Proportional to 2,079.50, 2,869.72 and 1,148.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.50 : 2,869.72 = 1,148.06 : x
2. Step 2: Convert to fraction form
   2,079.50/2,869.72 = 1,148.06/x
3. Step 3: Cross multiply
   2,079.50x = 2,869.72 × 1,148.06
4. Step 4: Simplify right side
   2,079.50x = 3,294,610.74
5. Step 5: Solve for x
   x = 3,294,610.74/2,079.50
6. Step 6: Final answer
   x = 1,584.33